save the variation of radio buttons django

Hello i have a form with three radio buttons they aren't a part of models.py. But when the user click on radio buttons i want to save their value in a variable called strategy in models.py. I defined in views : request.Post.get ('tabs') the name of radio buttons. But the error was **('WSGIRequest' object has no attribute 'Post')** Everything is saved excluding the value of radio buttons.

{% if user.profile.is_active %}
Name: {{ form.title }} <input type='submit' name='save' value='Save' class='btn btn-default'>
{% else %}
<p>
Expired account! you need to reactivate in order to save parameters.
</p>
{% endif %}
{% else %}
Please <a href="{% url 'auth_login' %}">login</a> in order to Run backtesting!
</br>
Our system needs your email in order to notify you once one or more of your simulations are done. This is a safer way for you to keep track of your previous simulations (/jobs).

{% endif %}

</form>

Views.py (for the save function):

def backtest(request, pk=None):

if pk is not None:
param = get_object_or_404(Parameters, pk=pk, user=request.user)
form = BacktestForm(request.POST or None, instance=param)
else:
form = BacktestForm(request.POST or None)

Hi, I'm using Django with Apache on webfaction web hosting and sometime my web app use to much RAM memory and then Apache stop working.. .

Dec. 22, 2014, 5:57 p.m

Why Django?

Django is Python. Python is a really nice, elegant & powered language ... and by far my favourite. Django makes things easier for you. It's a complete framework with a lot available - but only if you want it. It tries not to get in the way and if there are things you don't like you just go around. The templating language being a great example of this.